Effect of the Pd Layer on Optical Regulation Properties of the Oxygen Containing Yttrium Hydrides
Received date: 2018-08-05
Online published: 2018-09-30
Supported by
Project supported by the National Natural Science Foundation of China (No. 51272271).
Photochromic materials of oxygen-containing yttrium hydride exhibit reversible switching properties that can find applications in the energy saving windows, optical switching devices. However, the photochromic mechanisms of the oxygen-containing yttrium hydride has been not clarified yet. The optical modulation and durability of the films need to be improved. In this paper, oxygen-containing yttrium hydride films covered with hydrogen catalytic-palladium layers were prepared on a glass substrate by a direct-current (DC) magnetron sputtering methods. Firstly, oxygen-containing yttrium hydride thin films were deposited by DC magnetron sputtering of the Y targets in a 0.4 Pa with argon (purity 6N) and hydrogen (5N) mixed gas. Secondly, a thin film of Pd was deposited on the surface of YHx:O layer. Moreover, the effects of the Pd layer in the optical regulation state, crystal structure, surface microstructure and the content of each element of the oxygen-containing yttrium hydride films were investigated by means of SEM, XRD, and XPS methods. In the initial state, the films showed a transparent state with high transmittance in the visible and near-IR range same with single layer of the YHx:O. After exposure to xenon or visible light, the solar transmittance (Tsol) of the films sharply decreased by 37.39%. The result can be found that the coloring process (illumination process) of YHx:O thin films can be promoted and the optical regulation range can be increased after covered with a Pd layer. Investigation of the crystal structure by XRD demonstrates YHx:O covered with Pd, the same crystalline state with the YHx:O thin films has been found. After illumination, all reflection peaks of the YHx:O films slightly moving towards the larger angles with smaller lattice parameter (~5.30 Å) due to the deoxidation of YHx:O films. It can be seen from the EDS data that the oxygen contents in the YHx:O film decreases, while the yttrium contents increases, which is consistent with that of the single layer films. The XPS survey scans analysis of the YHx:O and Pd/YHx:O was also studied. After illumination, all peaks of the single layer slightly moving towards the larger angles. But the double layer have reverse result with above.
Key words： YHx:O; yttrium hydride; photochromic; energy saving materials
La Mao , Bao Shan-Hu , Sha Ren . Effect of the Pd Layer on Optical Regulation Properties of the Oxygen Containing Yttrium Hydrides[J]. Acta Chimica Sinica, 2019 , 77(1) : 90 -94 . DOI: 10.6023/A18080318
[1] Yang, S. H.; Yan, S. J.; Yang, J.; Zhang, C.; Han, G. Y. Chin. J. Org. Chem. 2018, 38, 425(in Chinese). (杨素华, 闫素君, 杨静, 张策, 韩国英, 有机化学, 2018, 38, 425.)
[2] Chen, Y.; Meng, J. B. Chin. J. Org. Chem. 2016, 36, 1869(in Chinese). (陈勇, 孟继本, 有机化学, 2016, 36, 1869.)
[3] Chen, P.; Wang, Y. Y.; Zhang, Y. M.; Zhang, X. A. Acta Chim. Sinica 2016, 74, 669(in Chinese). (陈鹏, 王宇洋, 张宇模, 张晓安, 化学学报, 2016, 74, 669.)
[4] Shen, Q. Y.; Lu, C. H.; Xu, Z. Z. Mater. Rev. 2005, 19, 31(in Chinese). (沈庆月, 陆春华, 许仲梓, 材料导报, 2005, 19, 31.)
[5] Jiao, G. H.; Yang, H.; Yu, A. M.; Zhang, Y. Ceramics 2014, 7, 49(in Chinese). (焦国豪, 杨辉, 余爱民, 张勇, 陶瓷, 2014, 7, 49.)
[6] Huiberts, J. N.; Rector, J. H.; Wijngaarden, R. J.; Jetten, S.; Groot, D.; Dam, B.; Koeman, N. J.; Griessen, R.; Hjorvarsson, B.; Olafsson, S.; Cho, Y. S. J. Alloys Compd. 1996, 239, 158.
[7] Huiberts, J. N.; Griessen, R.; Rector, J. H.; Wijnaarden, R. J.; Dekker, J. P.; Groot, D. G.; Koeman, N. J. Nature 1996, 380, 231.
[8] Griessen, R.; Huiberts, J. N.; Kremers, M.; Gogh, A. T. M.; Koeman, N. J.; Dekker, J. P.; Notten, P. H. L. J. Alloys Compd. 1997, 253, 44.
[9] Huiberts, J. N.; Griessen, R.; Wijngaarden, R. J.; Kremers, M.; VanHaesendonck, C. Phys. Rev. Lett. 1997, 79, 3724.
[10] La, M.; Zhou, H. J.; Li, N.; Xin, Y. C.; Sha, R.; Bao, S. H.; Jin, P. Appl. Surf. Sci. 2017, 403, 23.
[11] Bao, S. H.; Zhang, X. L.; Jin, P.; Yoshimura, K. Jpn. J. Appl. Phys. 2015, 54, 045501.
[12] Zhang, X. L.; Bao, S. H.; Xin, Y. C.; Cao, X.; Jin, P. Front. Mater. Sci. 2015, 9, 227.
[13] Bao, S. H.; Yamada, Y.; Tajima, K.; Jin, P.; Okada, M.; Yoshimura, K. J. Alloys Compd. 2012, 513, 495.
[14] Ohmura, A.; Machida, A.; Watanuki, T.; Aoki, K.; Nakano, S.; Takemura, K. Appl. Phys. Lett. 2007, 91, 151904.
[15] Wijngaarden, R. J.; Huiberts, J.; Nagengast, D.; Rector, J.; Griessen, R.; Hanfland, M.; Zontone, F. J. Alloys Compd. 2000, 308, 44.
[16] Palasyuk, T.; Tkacz, M. Solid State Commun. 2005, 133, 477.
[17] Machida, A.; Ohmura, A.; Watanuki, T.; Ikeda, T.; Aoki, K.; Nakano, S.; Takemura, K. Solid State Commun. 2006, 138, 436.
[18] Mongstad, T.; Platzer-Björkman, C.; Maehlen, J. P.; Holt, A.; Maehlen, J. P.; Hauback, B. C. Sol. Energy Mater. Sol. Cells. 2011, 95, 3596.
[19] Pishtshev, A.; Karazhanov, S. Z. Solid State Commun. 2014, 194, 39.
[20] Montero, J.; Martinsen, F.; Lelis, M.; Karazhanov, S. Z.; Hauback, B.; Marstein, E. arXiv preprint arXiv161008263, 2016.
[21] Mongstad, T.; Platzer-BjöRkman, C.; Mæhlen, J. P.; Hauback, B. C.; Karazhanov, S. Z.; Cousin, F. Appl. Phys. Lett. 2012, 100, 191604.
[22] Mongstad, T.; Thøgersen, A.; Subrahmanyam, A.; Karazhanov, S. Sol. Energy Mater. Sol. Cells. 2014, 128, 270.
[23] Yamada, Y.; Miura, M.; Tajima, K.; Okada, M.; Yoshimura, K. Sol. Energy Mater. Sol. Cells. 2013, 117, 396.
[24] You, C. C.; Mongstad, T.; Maehlen, J. P.; Karazhanov, S. Appl. Phys. Lett. 2014, 105, 031910.
[25] Chandran, C. V.; Schreuders, H.; Dam, B.; Janssen, J. W. G.; Bart, J.; Kentgens, A. P. M.; van Bentum, P. J. M. J. Phys. Chem. C 2014, 118, 22935.
[26] Su, L.; Zhang, L.; Fang, J.; Xu, M. H.; Lu, Z. H. Sol. Energy Mater. Sol. Cells. 1999, 58, 133.
[27] Li, W. J.; Ji, S. D.; Qian, K.; Jin, P. Ceram. Int. 2015, 41, 5049.
[28] Mongstad, T.; Platzer-Björkman, C.; Karazhanov, S. Z.; Holt, A.; Maehlen, J.; Hauback, B. J. Alloys Compd. 2011, 509, S812.
[29] Maehlen, J. P.; Mongstad, T. T.; You, C. C.; Karazhanov, S. J. Alloys Compd. 2013, 580, S119.
[30] La, M.; Li, N.; Sha, R.; Bao, S. H.; Jin, P. Scr. Mater. 2018, 142, 36.
/
| 〈 |
|
〉 |
